修复统一err

5.3.md

@@ -43,31 +43,31 @@ Go支持sqlite的驱动也比较多，但是好多都是不支持database/sql接
 		checkErr(err)
 
 		//插入数据
-		stmt, errs := db.Prepare("INSERT userinfo SET username=?,departname=?,created=?")
-		checkErr(errs)
+		stmt, err := db.Prepare("INSERT userinfo SET username=?,departname=?,created=?")
+		checkErr(err)
 
-		res, errres := stmt.Exec("astaxie", "研发部门", "2012-12-09")
-		checkErr(errres)
+		res, err := stmt.Exec("astaxie", "研发部门", "2012-12-09")
+		checkErr(err)
 
-		id, errid := res.LastInsertId()
-		checkErr(errid)
+		id, err := res.LastInsertId()
+		checkErr(err)
 
 		fmt.Println(id)
 		//更新数据
-		stmt, errs = db.Prepare("update userinfo set username=? where uid=?")
-		checkErr(errs)
+		stmt, err = db.Prepare("update userinfo set username=? where uid=?")
+		checkErr(err)
 
-		res, errres = stmt.Exec("astaxieupdate", id)
-		checkErr(errres)
+		res, err = stmt.Exec("astaxieupdate", id)
+		checkErr(err)
 
-		affect, erraff := res.RowsAffected()
-		checkErr(erraff)
+		affect, err := res.RowsAffected()
+		checkErr(err)
 
 		fmt.Println(affect)
 
 		//查询数据
-		rows, errrow := db.Query("SELECT * FROM userinfo")
-		checkErr(errrow)
+		rows, err := db.Query("SELECT * FROM userinfo")
+		checkErr(err)
 
 		for rows.Next() {
 			var uid int
@@ -83,14 +83,14 @@ Go支持sqlite的驱动也比较多，但是好多都是不支持database/sql接
 		}
 
 		//删除数据
-		stmt, errrow = db.Prepare("delete from userinfo where uid=?")
-		checkErr(errrow)
+		stmt, err = db.Prepare("delete from userinfo where uid=?")
+		checkErr(err)
 
-		res, errres = stmt.Exec(id)
-		checkErr(errres)
+		res, err = stmt.Exec(id)
+		checkErr(err)
 
-		affect, erraff = res.RowsAffected()
-		checkErr(erraff)
+		affect, err = res.RowsAffected()
+		checkErr(err)
 
 		fmt.Println(affect)